Farsight said:
It is E=mc², it's does the inertia of a body depend upon its energy content? That's where Einstein said "The mass of a body is a measure of its energy-content". Not the measure of how that body interacts with some mysterious field. The measure of its energy content.
Are you really unaware of the difference between relativistic mass and rest mass?
The inertia of a body depends on its relativistic mass, not its rest mass. The interaction with the Higgs field gives particles non-zero rest mass, which means they have non-zero inertia even when they are not moving. They then have more inertia when they are moving, because their relativistic mass (the m in E=mc²) is greater. Likewise they have non-zero energy even when they are not moving, which of course is why nuclear reactions can convert rest mass to kinetic energy.
There is no conflict here between E=mc² and the Higgs mechanism. Your claim that there is appears to amount to the misconception that the m in E=mc² refers to the rest mass of a particle, rather than the relativistic mass.
Farsight said:
The nub of what I've said is the energy of a body depends upon its energy content. It hasn't been soundly refuted. If you beg to differ try referring to it or repeating it.
I assume you meant "the inertia of a body depends on its energy content" above. The problem is that you appear to be operating under the misconception that this is somehow incompatible with the Higgs mechanism.
Farsight said:
Not true. If you conduct repeated Compton scattering the first electron recoils this way ?, the next this way ?, the next this way ?, the next this way ?, and so on. You achieve a "starburst spiral" of electron motion which removes the photon angular momentum. Draw a circle, then draw tangents off it with arrows on the end.
No, the photon always has exactly one unit of angular momentum. It is a spin 1 particle. Do you understand what that means? It's angular momentum can
change direction, but it can never be zero.
Farsight said:
Stimpson J. Cat said:
So the notion that you could somehow drain the kinetic energy from a photon until none is left, is simply nonsensical. What you can do is absorb the photon. But then you absorb its angular momentum too, not just its kinetic energy.
You cannot spearate momentum and energy. Take a simple cannonball example. You can't take away the kinetic energy without taking away the momentum. It isn't called energy-momentum for nothing.
Yes, I know. But I didn't say "momentum". I said "angular momentum".
Now, classically angular momentum is also associated with rotational kinetic energy. But that isn't the case for a photon. The photon's total energy is proportional to its linear momentum. The angular momentum is the same regardless of its total energy. Taking energy away doesn't reduce its angular momentum. A photon with incredibly tiny total energy still has just as much angular momentum as a super high-energy gamma photon.
Farsight said:
No, when you remove the energy-momentum you aren't left with anything. The photon is not a cannonball. It's a wave.
You can't remove all the energy-momentum without also absorbing that 1 unit of angular momentum. And you can't absorb that 1 unit of angular momentum without also absorbing the photon (that is, you can't have a photon with zero angular momentum). The photon is
not a wave (at least, not in the classical sense that you are suggesting). Nor is it a particle in the classical sense of the term. Nor is it both. Nor is it sometimes one and sometimes the other. It is a quantum mechanical object which exhibits some behavior which is very similar to a classical wave under some conditions, some behavior which is very similar to a classical particle under other conditions, and some behavior which is utterly unlike anything classical under all conditions.